see Silliman's Journ., vol. xxiv. p. 384. For those on Tacna by Mr.
Hamilton, see Trans. of British Association, 1840. For those on
Coseguina see Mr. Caldcleugh in Phil. Trans., 1835. In the former
edition I collected several references on the coincidences between
sudden falls in the barometer and earthquakes; and between earthquakes
and meteors.
[2] Observa. sobre el Clima de Lima, p. 67.--Azara's Travels, vol. i.
p. 381.--Ulloa's Voyage, vol. ii. p. 28.--Burchell's Travels, vol. ii.
p. 524.--Webster's Description of the Azores, p. 124.--Voyage a l'Isle
de France par un Officer du Roi, tom. i. p. 248.--Description of St.
Helena, p. 123.
[3] Temple, in his travels through Upper Peru, or Bolivia, in going
from Potosi to Oruro, says, "I saw many Indian villages or dwellings in
ruins, up even to the very tops of the mountains, attesting a former
population where now all is desolate." He makes similar remarks in
another place; but I cannot tell whether this desolation has been
caused by a want of population, or by an altered condition of the land.
[4] Edinburgh, Phil. Journ., Jan., 1830, p. 74; and April, 1830, p.
258--also Daubeny on Volcanoes, p. 438; and Bengal Journ., vol. vii. p.
324.
[5] Political Essay on the Kingdom of New Spain, vol. iv. p. 199.
[6] A similar interesting case is recorded in the Madras Medical Quart.
Journ., 1839, p. 340. Dr. Ferguson, in his admirable Paper (see 9th
vol. of Edinburgh Royal Trans.), shows clearly that the poison is
generated in the drying process; and hence that dry hot countries are
often the most unhealthy.
CHAPTER XVII
GALAPAGOS ARCHIPELAGO
The whole Group Volcanic--Numbers of Craters--Leafless Bushes Colony at
Charles Island--James Island--Salt-lake in Crater--Natural History of
350